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WO1998001236A1 - Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements - Google Patents

Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements Download PDF

Info

Publication number
WO1998001236A1
WO1998001236A1 PCT/US1996/011277 US9611277W WO9801236A1 WO 1998001236 A1 WO1998001236 A1 WO 1998001236A1 US 9611277 W US9611277 W US 9611277W WO 9801236 A1 WO9801236 A1 WO 9801236A1
Authority
WO
WIPO (PCT)
Prior art keywords
formulation
encapsulating
substrate
coated substrate
coating
Prior art date
Application number
PCT/US1996/011277
Other languages
English (en)
Inventor
Joseph E. Pritchett
Original Assignee
Pritchett Joseph E
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/677,558 external-priority patent/US5695812A/en
Application filed by Pritchett Joseph E filed Critical Pritchett Joseph E
Priority to AU66749/96A priority Critical patent/AU6674996A/en
Priority to PCT/US1996/011277 priority patent/WO1998001236A1/fr
Publication of WO1998001236A1 publication Critical patent/WO1998001236A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/20—Agglomeration, binding or encapsulation of solid waste
    • B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/35—Asbestos

Definitions

  • the present invention relates to a method for encapsulating, with a impact and abrasion resistant formulation, bio-hazardous particulate matter, such as asbestos, lead, and metallic oxides.
  • Still another object of the invention is to provide a method for abating bio-hazardous materials sealing the pre-existing bio-hazardous materials before they loose to the environment by encapsulating the hazardous material using composition of urethanes and metallics.
  • the present invention is primarily focussed on the abatement of asbestos. However, the general application of this method is not solely limited to the abatement of asbestos, rather to any material that potentially presents a bio-hazard to the environment . Other bio- hazards abated by this method include, but are not limited to, lead particles found in lead based paints, and metallic oxides such as rust.
  • the present method uses a trade secret composition containing urethanes and metallics, with additional trade secret additives that improve the encapsulating properties.
  • the composition is commercially available from Superior Products International II, Inc., 6459 Universal Avenue, Kansas City, Missouri 64120, under the product name RUST GRIP, incorporated herein by reference: see appendix "A” .
  • the resulting formulation provides an impact and abrasive resistant finish over existing coatings that contain hazardous materials.
  • the method of the present invention uses this formulation of a combination of high performance urethanes and additives in a single component unit to give the formulation the ability to encapsulate, and seal any surface.
  • the prior art methods that require the coated surfaces be prepped before applying any sealing or overlay material.
  • the prior art methods require a cleaning, scraping, removing, or the like, of any excess, peeling, or flaking of the previous coating. This procedure allows the hazardous materials, in particulate form, to contaminate the environment. Additionally, this procedure requires further extensive and expensive clean-up to insure environmental security and safety.
  • the present method does not require the expensive, extensive, and time consuming steps of preparing the coated surfaces.
  • the present method applies the formulation directly to the coated substrate surface.
  • the method applies the formulation in a manner consistent with many other general purpose coatings, however, the method is novel because it produces the new and unexpected result of encircling, encapsulating and bonding otherwise bio-hazardous particulate matter to the substrate surface.
  • the method of the present invention involves providing the formulation set forth above.
  • the application of the formulation involves the simple procedure of coating the surface of the coated substrate. This is accomplished in various conventional manners, such as, brushing, rolling, or spraying. As stated above, it is not necessary to prepare the surface in any extensive manner, however, the method requires that the surface be completely dry. Additionally, a light dust removal or vacuuming may enhance the effectiveness, although not required.
  • the formulation once initially applied, is allowed time to percolate through the coating and bond to the substrate surface.
  • the formulation percolates through the pores of the coating on the substrate surface.
  • the formulation also expands internally of the pores by absorbing atmospheric moisture.
  • the expansion also provides the vehicle with which the formulation also attaches to the particulate matter that forms the bio-hazard.
  • the attachment virtually causes the formulation to encircle the particulate matter and bond the particulate matter to the substrate surface.
  • the method also allows the formulation to cure for a first period of time not to exceed four hours.
  • the formulation is re- applied, re-percolated, and re-cured at least for one additional application after the initial application.
  • the formulation has a property that once it is allowed to completely dry out, the ability to apply a second coat is lost.
  • the formulation is most effective when at least two complete applications of the formulation are administered.
  • the second or subsequent application is allowed to cure for a time period also not to exceed four hours unless the seconds or subsequent application is the final application.
  • the final application is allowed to completely cure or dry, generally six to eight hours. Once the final application is completely cured, the formulation forms a encapsulating seal around all particles of the hazardous material, bonds to the substrate surface, and produces a virtually impact resistant shell that maintains integrity exceeding impacts of 200 psi. Further, this shell is also abrasion resistant on the order of 18 mg/kHz loss.
  • the standard protocol generally requires abrasion resistance to be within the range limits of 100-150 mg/kHz, or less to be acceptable.
  • the bio-hazardous materials of the coating on a substrate is abated and the surface is impact and abrasion resistant.
  • the particulate materials such as asbestos
  • the particulate materials is no longer a substantial threat to children, or anyone, during the normal course of use of the substrate. That is, the asbestos particles will not be released as air borne contaminants using applicant's method when the asbestos coated substrate is used in a normal fashion.
  • any other potentially bio- hazardous coating e.g., lead based paint
  • any other potentially bio- hazardous coating e.g., lead based paint

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La réduction des matières à particules biologiquement dangereuses, telles que l'amiante, constitue une tâche des plus urgentes pour que les enfants puissent bénéficier d'un avenir. Le procédé de la présente invention consiste à réduire lesdites matières par encapsulation de ceux-ci d'une manière efficace et simple. Le procédé consiste à utiliser une formulation spéciale qui, lorsqu'elle est appliquée sur une surface potentiellement dangereuse du point de vue biologique, telle que l'enduit d'un support, s'infiltre dans les pores de ladite surface, entoure et encapsule les particules. La formulation permet aussi de lier lesdites particules à la surface du support de revêtement. Le procédé permet une encapsulation complète de la matière particulaire biologiquement dangereuse contenue dans un enduit de support, par liaison desdites particules encapsulées à la surface du support, ledit revêtement scellé résistant ainsi aux chocs et à l'abrasion.
PCT/US1996/011277 1996-07-08 1996-07-11 Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements WO1998001236A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU66749/96A AU6674996A (en) 1996-07-08 1996-07-11 Method for abating bio-hazardous materials found in coatings
PCT/US1996/011277 WO1998001236A1 (fr) 1996-07-08 1996-07-11 Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/677,558 US5695812A (en) 1996-07-08 1996-07-08 Method for abating bio-hazardous materials found in coatings
PCT/US1996/011277 WO1998001236A1 (fr) 1996-07-08 1996-07-11 Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements
USNOTFURNISHED 1999-07-20

Publications (1)

Publication Number Publication Date
WO1998001236A1 true WO1998001236A1 (fr) 1998-01-15

Family

ID=26791125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/011277 WO1998001236A1 (fr) 1996-07-08 1996-07-11 Procede de reduction des matieres biologiquement dangereuses se trouvant dans des revetements

Country Status (1)

Country Link
WO (1) WO1998001236A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143757A (en) * 1989-03-17 1992-09-01 SKINNER George Encapsulating a substrate
US5376705A (en) * 1991-09-18 1994-12-27 Transcontinental Marketing Group, Inc. One coat protective system for a surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143757A (en) * 1989-03-17 1992-09-01 SKINNER George Encapsulating a substrate
US5376705A (en) * 1991-09-18 1994-12-27 Transcontinental Marketing Group, Inc. One coat protective system for a surface

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